code: def miles(kilometers=0, meters=0, feet=0, nautical=0):
      """
      Convert distance to miles.
      """
      ret = 0.0
      if nautical:
          kilometers += nautical / nm(1.0)
      if feet:
          kilometers += feet / ft(1.0)
      if meters:
          kilometers += meters / 1000.0
      ret += kilometers / 1.609344
      return ret
  
file_path: geopy/geopy/units.py
imports: import math
label_desc: Use image node_id 7 for calling a global function with example usage: miles(kilometers, meters, feet, nautical) and returns: ret